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H. M. HANMORE.

FIRE KINDLER. Patented Apr. 17, 1888.'.

UNITED g STATES PATENT (,)EEICErl HIEAM M. HANMORE, on oAMDEN, NEW JEEsEY.

SPECIFICATION forming partcf Leners Patent 10.381,237, aatea April 17,1989.

Application filed January 4, 1888. Serial No. 2579.757. (No spccniens Y I To all whom it may concern:

l Be it known that I, HIRAM M. HANMOEE, va citizen of theUnited States, residing in the city andcounty of Camden, in the State of New Jersey, have invented a new and useful Improvement in FuelCartridges, of ywhich the 'following is a specification, reference being had to the accompanying drawing forming part of this specication- This inventionrelates to fuel-cartridges composed of refractory substance for absorbing kerosene or other combustible liquid to be used `as fuel, such cartridges being capable of being recharged with the kliquid many times for repeated use. Y i y The' invention consists in a composition for such cartridges, including as absorbent elements carbonate of magnesia, calcined magnesia, and asbestus ber. I prefer, generally, to use fifty (50) parts, by Weight, of carbonate of magnesia, twenty parts of calcined magnesia, and'thirty (30) parts of asbestusd fiber; but' these lproportions Y may be varied considerably without essentially changing the character of-my composition.

The composition is used in the form of bricks or blocks of convenient form and size,which, to preserve them, may be bound with Wire or metal bands, or inclosed in any open kind of metal-work. l

The accompanying 'drawing represents a v perspective-view of ajfuel-cartridge of my invention bound with a Wire band, a, in which is constructed a1oop,`b, for the purpose of receiving the end of a 1iftingrod by which to place it in or remove it from a stove orre- To make my composition I mix the carbonate of magnesia and calcined magnesia ina'- state of powderwith the asbestus ber in a make a thick paste, and form the mass in molds of. considerable size into blocks, whichwhen fuellcartridges. Y e

The valueof this composition consists not only in the refractory character of l thefasbestus finely-reducedv state, and as much Water as will `and calcined magnesia at high temperatures,

Vbut in the exceedingly absorbent nature of the `calcined magnesia and carbonate of magnesia,

which enables the compoundy to hold .a large proportion of kerosene orother combustible I have hereinabove sty ted that the relative proportions of the'carbonate of magnesia'and calcined magnesia may be' -varied"`without' materially changing thecharacterof my composition; but I have found by experiment Vthat proportions hereinbefore stated are, all j 6or things considered, the best.y 'Ihe calcined magnesia alone, or too large a proportion of it, is difficult to keep cemented together; but

it Willistand a higher heat and bear a greater number oi' firings,while the carbonate `of mag- '1.

nesia has a more binding quality and is cheaper.

Therefore a properproportion of theftwo makes the most serviceable composition. .The composition is, however, so cheap that after having been once or twice used it mightbe thrown What I claim as my invention, and desire to f away.

secure by Letters Patent, isw q A composition lfor Vfuel-cartridges, consist-l ing of calcined magnesia, carbonate of magnesia, and asbestus ber, in proportions substan- .tially/,asherein set forth. v y

- HIRAM M. HANMORE. g

Witnesses:

FEEDK. HAYNEs, C.- E. LUNDGREN. 

